NICET WBSL Level IV Practice Questions - NICET Water-Based Systems Layout Level IV Exam

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When hydraulically calculating an ESFR system protecting rack storage under a flat 40 ft ceiling, what is the standard design area required by NFPA 13 (2022)?

8 sprinklers (4 sprinklers on each of 2 branch lines) 16 sprinklers (4 sprinklers on each of 4 branch lines) 12 sprinklers (6 sprinklers on each of 2 branch lines) 12 sprinklers (4 sprinklers on each of 3 branch lines)

Correct Answer:

12 sprinklers (4 sprinklers on each of 3 branch lines)

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